function removeItemInArray(item, items) {
    return items.filter(function (fns) {
        return !isEqual(fns, item);
    });
}

function isEqual(a, b) {
    return a === b;
}

function isFun(any) {
    return typeof any === 'function';
}


function isArray(any) {
    return any instanceof Array;
}

function isNull(any) {
    return any == void 0;
}
